Kühleitner, Manfred, Norbert Brunner, and Katharina Renner-Martin. “FORECASTING INNOVATION DIFFUSION WITH NEAR-OPTIMAL BERTALANFFY-PÜTTER MODELS”. International Journal of Engineering Technologies and Management Research 7, no. 8 (August 7, 2020): 1–11. Accessed March 28, 2024. https://www.granthaalayahpublication.org/ijetmr-ojms/ijetmr/article/view/IJETMR20_A07_2158.